The Valve,safety Relief, cataloged under National Stock Number 4820-00-837-8183, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Anderson Greenwood Lp Dba Anderson Greenwood Crosby. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-837-8183 |
| Primary Part Number | 48 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| Status | CANCELLED |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Opening Pressure Setting | 100.0 POUNDS PER SQUARE INCH LBS |
| Thread Direction | RIGHT-HAND FIRST END |
| Maximum Operating Temp | 300.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Material | COPPER ALLOY OVERALL |
| Valve Operation Method | AUTOMATIC OR MANUAL |
| Bonnet Type | INSIDE SCREW |
| Connection Style | PLAIN (PIPE) FIRST END |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Disk Loading Method | SPRING |
| Flow Control Device | DISK |
| Bonnet Attachment Method | PRESSURE SEAL, RING TYPE |
| Features Provided | PRESSURE TIGHT OUTLET SIDE |
| Thread Series Designator | NPT FIRST END |
| Nominal Thread Size | 0.250 INCHES FIRST END IN |
| Valve Discharge Flow Rate | 57.0 CUBIC FEET PER MINUTE |
| Style Designator | STRAIGHT THRU W/BAFFLE |
| Operating Pressure | 225.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 48 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 48A | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 48A1-4IN100PSI | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
NSN 4820-00-837-8183 is a Valve,safety Relief, manufactured by Anderson Greenwood Lp Dba Anderson Greenwood Crosby, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-837-8183 has 3 cross-referenced part numbers: 48 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 48A (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 48A1-4IN100PSI (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
There are 12 known substitutes for 4820-00-837-8183: 4820-00-005-7394, 4820-00-027-0994, 4940-00-181-7590 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 48: Media for Which Designed: FUEL/OIL, HYDROCARBON SINGLE RESPONSE; Opening Pressure Setting: 100.0 POUNDS PER SQUARE INCH LBS; Thread Direction: RIGHT-HAND FIRST END; Maximum Operating Temp: 300.0 FAHRENHEIT SINGLE RESPONSE DEGF. 19 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-837-8183 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.